except.h (in_same_eh_region): New prototype.

except.h (in_same_eh_region): New prototype.

	* except.h (in_same_eh_region): New prototype.
	(free_insn_eh_region, init_insn_eh_region): New prototypes.
	* except.c (insn_eh_region, maximum_uid): New static variables.
	(set_insn_eh_region): New static function to set region numbers.
	(free_insn_eh_region): New function to free EH region table.
	(init_insn_eh_region): New function to initialize EH region table.
	(in_same_eh_region): New function used to determine if two rtl
	instructions are in the same exception region or not.
	* final.c (final): Initialize the table indicating which instructions
	belong in which exception region.
	* genpeep.c (main): Add "except.h" to include file list in generated
	file insn-peep.c.
	* config/sparc/sparc.md: Add calls to 'in_same_eh_region' in 4
	peepholes involving calls and unconditional branches.

From-SVN: r18622